The actress said losing so much weight from her regularly slender frame prompted a concerned reaction on the set of the movie musical.

"Tom didn't like what I was doing, but he understood why I was doing it," the actress told the Los Angeles Times, in a new interview. "No one liked what I was doing. By the end, people were hugging me and they would get emotional because I felt so frail."

At the junket for the film in early December, Anne wouldn't talk about how she lost the weight, but she did share with Access Hollywood's Michelle Beadle a description of her first post-shooting meal.

"I had spelt pasta with garlic oil and like a lot of beautiful fresh tomatoes and then I had a twice baked potato, with basil, sun dried tomatoes [and] oil. It was so good," she raved at the time.

Anne clearly put a lot of pressure on herself to fit into the vision she had for Fantine, but despite the accolades -- like nominations for both a Screen Actors Guild award and Golden Globe award for playing Fantine in "Les Miserables" -- Anne admitted she wants to be better.

"I see the sort of work that people like Meryl Streep and Cate Blanchett and Kate Winslet can do, and I want to do that level of work so badly," she told the Times. "But I don't believe I'm as gifted as them. So the only thing I can control is how hard I work at it."